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(No Model.) 2Sheets-Sheet 1.

F. W. MILLER 8v J. J. NEWMAN.

EAPER WATERPROOFING MACHINE.

N 3.286. Patented Oct. 22,1889.

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(No Model.) 2 spam-sneer 2; E. W. MILLER & J. J. NEWMAN.

PAPER WATERPROOFING MACHINE.

Patented Opt. 22, 1889.

WITNESSES:

ATTORNEY UNITED I STATES PATENT OFFICE.

FREDERICK W. MILLER AND JOHN J. NEWMAN, OF ELKHART, INDIANA, AS- SIGNORSTO THE GLOBE TISSUE PAPER COMPANY, OF SAME PLACE.

PAPER-WATERPROOFING MACHINE.

SPECIFICATION forming part of Letters Patent No. 413,286, dated October22,1889.

Application filed March 22, 1887. Serial No. 2531;99'7. (No modell) Toan whom. it may concern:

Be it known that we, FREDERICK W. MIL- LER and J OHN J. NEWMAN, both ofElkhart, Elkhart county, Indiana, have invented certain new and usefulImprovements in Paper- Waterproofing Machines, of which we herebydeclare the following to be a full, clear, and exact description. I 7

Our invention has for its object the providing of such new and usefulimprovements in paper-waterproofing. machines that the paper isthoroughly and equally impregnated with the waterproofing material, andso that all superfluous waterproofing material expressed from the paperafter the application of the same is removed beyond the possibility ofsoiling said paper during its subsequent ma-' nipulation. Ourimprovements are such that the paper may also be waterproofed eitherbefore or after the finishing of the paper by the paper-machine orseparate therefrom, substantially as hereinafter described, and asillustrated in the drawings, in which' Figure 1 is an end elevation ofjour invention, showing the same in its relative position with referenceto the finishing devices of a paper-making machine for waterproofing thepaper after the same is finished. Fig. 2 shows a side elevation of thesame. Fig. 3 shows a side elevation of the devices forjdistributing thewaterproofing material, taken from the side opposite to that illustratedin Fig. 2; and Fig. 4 is a transverse section of said devices.

In our Letters Patent, granted April 27,

1886, and numbered 340,810, we have described and claimed the method ofwaterproofing paper before the same has passed through the finishingdevices of a paper-making machine. In this application we desire moreparticularly to describe and claim the method of waterproofing the webof paper after it has left the finishing devices. When it is desired tothus treat the paper, the web, after it leaves the last drier-roll ofthe papermaking machine proper, is passed through the calender-r0111 andwound upon one of several reels j ournaled in the rack 2. As one ofthese reels on rack 2 becomes full the web is cut and wound upon one ofthe other reels. From the full or complete reel the paper is fedto andrun through our improved waterspread the material previously distributedthereon, and open the pores thereof suffi ciently for said paper tobecome thoroughly impregnated with the melted wax, parafline, or otherwaterproofing material without using an excess thereof, and therebyrisking the soiling of the paper during its subsequent manipulations inthe machines anddepreciating its marketable value.

Reference being had to the drawings, A represents a frame consisting oftwo standards connected at their top, and having suitable bearings forthe hot calender-rolls a a."

0.", arranged one above the other, so that their centers of revolutionare intersected by the same vertical line, and so that their peripheries touch each other.

Placed transversely above and parallel with the top roll a is adistributing-pipe B, which is supplied with waterproofing material in aliquid state from the reservoir 0, supported above and preferably on oneside of frame A.

Pipe B is traversed its entire length, including its connections B withreservoir 0, by a steam-pipe b, so as to maintain the waterproofingmaterial in a perfectly liquid state. This pipe I) may be the same as isused to heat the rolls a, a, and a",or it may be sepa rate, as desired.

In order to regulate the flow of waterproofing material and thoroughlydistributethe same upon the web-coursing around roll a beneath thesame,I provide pipe B with a series of needle-valves. These valvesconsist of lateral pipe-stubs 0', having a very small bore, which,preferably, is connected tangentially with the bore of pipe B. Leadingdownward from the bore of the stub is an? aperture of about the samediameter, and de-- pending vertically downward from said stub adjacentto the mouth of said aperture is a needle-arm c; Thewaterproofing-liquid flows into the stub from pipe B and out of theaperture aforesaid, leading from the bore of said stub onto theneedle-arm 0, upon the pointed extremity of which it forms into globulesand drops'oif onto thepaper below. The flow of material into and fromthese valves is regulated by the gage-screws c, which enters stub clongitudinally from the outer end in alignment with the bore thereof,and extends into the same sufficient to cover the aperture leading fromthe bore to the needlearm 0. Thus as said screws are turned it opens orcloses the said aperture more or less, and regulates the flow ofwaterproofing material therethrou gh.

In order to operate all of these needlevalves simultaneously andequally, we affix to their outer ends the small sprocket-wheels c andengage them with a transverse chain 1), which passes over them and overthe sheaves d d, journaled in transverse alignment therewith in bracketssecured to the outer surfaces of the standards of frame A. This chain Dhangs down beside the standards of frame A, and has equipoised weightssecured to its ends. Thus, by raising one or the other weights the chainengages the sprockets c-as it moves to the right or left andturns themequally, thus regulating the flow of material, as desired.

While not deemed absolutely necessary, yet we prefer to regulate theflow of the waterproofing-1iquid from the reservoir G into connection Band distributingpipe B. This we accomplish by means of a plug 6, whichfits into the mouth of the connection B, and is raised or lowered toopen or close said pipe by means of a plunger E, on the lower end ofwhich said plug is affixed arm e, which projects from the contiguous endof oscillating shaft F, and to which said plunger is pivotally connectedarm f, projecting from the opposite end of the oscillating shaft F andin a direction opposite to arm 6, and the vertical adjustment or gagerod g, extending downward from arm f, having its lower end screwthreadedand passing through a bifurcated lug g, projecting from the standard offrame A. On the lower end of this rod, below lug g, is a thumb-nuth, byturning which in one direction the rod is drawn downward and arm foscillated in the same direct-ion, thus turning shaft F, raising arm 6,and withdrawing plug 6 from the mouth of the connecting-pipe B, andpermitting the waterproofing-fluid to flow into the distributingpipe. Byturning the thumb-nut in the opposite direction from that just describedthe operation of the contingent mechanism is the reverse, and the plug 6operates to close the connection B. We facilitate the closing of saidconnection B by placing an adjustable weight upon arm 6. This weight maybe dispensed with, however.

Reference being had to Fig. 1, it will be noticed that the web of paperas it leaves the roll on'rack 2 passes over and around roll a, thenbetween rolls a and a and around a in the opposite direction, andfinally between rolls a and a" to the slitting-machine. There is danger,no matter 110w careful the operator may be, of the superfluouswaterproofing material expressed from the web, as it passes betweenrolls a and a, dripping ofi the sides of the roll a onto the web as thelatter travels toward the slitting-machine. This we avoid by the use ofascraper or doctor H, the blade of which is preferably concavelongitudinally, or gutter-shaped, so that the fluid removed from thesurface of roll a will gravitate into and be conveyed to the ends of thedoctor, from which it drips into the drip pan or basin I, which latterconforms somewhat in curvature to the periphery of roll a. This doctor His secured to the ends of arms h h, secured in and projecting from thepivotal lugs, and have weights 7c adjusted to their outer ends, so as tokeep them bearing against the periphery of the roll. We also place adoctor-K against the periphery of roll a, as shown, so that should theweb of paper break, instead of clinging to the said roll a and possiblydropping into the drippan, it will be scraped therefrom by said doctorand directed to the floor. Doctor K is likewise provided with arms h andweights in, similar to doctor H, so as to keep its edge in engagementwith roll a.

We do not wish to be confined to the use of the mechanism justdescribedfor keeping the doctors in engagement with the rolls, for it isobvious other means could be supplied instead. Neither do we wish to beconfined to a doctor having a curved blade, as it is obvious a straightblade could be made to answer the purpose. It is preferred, in order tofacilitate the drainage of the waterproofing-fluid therefrom, to inclinethe doctors toward one end or the other of the rolls, or to make themhigher about their centers of length than at the ends, as shown. To dothis we project the scraping edge of the blades so as to conform to thecurvature of the roll. We could dispense with the doctors and dependupon the proper regulation of the supply of waterproofing-fluid from thedistributing-pipe B and upon the paper not breaking. We prefer theiruse, however.

The reservoir 0 is constructed substantially like that shown anddescribed in our aforesaid Letters Patent, numbered 840,810, and issupplied from a melting-vat, into which the raw or solid wax paraffineor other waterproofing material is melted before being supplied to saidreservoir. This vat, however, may be dispensed with. When it is used,though,it is constructed similar to that in the aforesaid LettersPatent.

What we claim as new is 1. In a paper-machine, the combination, with themeans for applying waterproofing material to the Web of paper,of the hotcalwith a reservoir and distribu tingpipe, of 0 ender-rolls and doctorsinclined toward one plug e, plunger E, arms e and f, shaft F, and

or both ends, as set forth.

2. In a paper-machine, the combination, with a reser oir,distributing-pipe, and needle-valves provided with wheels 0 as setforth.

3. In a paper-machine, the combination,

of a a weighted chain engaging with the said m heels,

adjustment-rod g, as set forth.

FREDERICK W. MILLER. JOHN J. NEWMAN.

Witnesses: V

JAMES H. STALE, JAM S O. DIETZ.

